On Tue, Dec 17, 2013 at 04:17:02PM +0800, Dongsheng Wang wrote:
> From: Wang Dongsheng <dongsheng.w...@freescale.com>
>
> Add a sys interface to enable/diable pw20 state or altivec idle, and
> control the wait entry time.
>
> Enable/Disable interface:
> 0, disable. 1, enable.
> /sys/devices/system/cpu/cpuX/pw20_state
> /sys/devices/system/cpu/cpuX/altivec_idle
>
> Set wait time interface:(Nanosecond)
> /sys/devices/system/cpu/cpuX/pw20_wait_time
> /sys/devices/system/cpu/cpuX/altivec_idle_wait_time
> Example: Base on TBfreq is 41MHZ.
> 1~48(ns): TB[63]
> 49~97(ns): TB[62]
> 98~195(ns): TB[61]
> 196~390(ns): TB[60]
> 391~780(ns): TB[59]
> 781~1560(ns): TB[58]
> ...
>
> Signed-off-by: Wang Dongsheng <dongsheng.w...@freescale.com>
This causes ppc6xx_defconfig to fail to build:
CC arch/powerpc/kernel/sysfs.o
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c: In function
'show_pw20_state':
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c:125:11: error:
'PWRMGTCR0_PW20_WAIT' undeclared (first use in this function)
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c:125:11: note:
each undeclared identifier is reported only once for each function it appears in
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c: In function
'do_store_pw20_state':
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c:138:17: error:
'PWRMGTCR0_PW20_WAIT' undeclared (first use in this function)
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c: In function
'show_pw20_wait_time':
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c:174:20: error:
'PWRMGTCR0_PW20_ENT' undeclared (first use in this function)
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c:175:6: error:
'PWRMGTCR0_PW20_ENT_SHIFT' undeclared (first use in this function)
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c: In function
'set_pw20_wait_entry_bit':
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c:204:16: error:
'PWRMGTCR0_PW20_ENT' undeclared (first use in this function)
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c:207:33: error:
'PWRMGTCR0_PW20_ENT_SHIFT' undeclared (first use in this function)
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c: In function
'show_altivec_idle':
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c:247:11: error:
'PWRMGTCR0_AV_IDLE_PD_EN' undeclared (first use in this function)
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c: In function
'do_store_altivec_idle':
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c:260:19: error:
'PWRMGTCR0_AV_IDLE_PD_EN' undeclared (first use in this function)
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c: In function
'show_altivec_idle_wait_time':
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c:296:20: error:
'PWRMGTCR0_AV_IDLE_CNT' undeclared (first use in this function)
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c:297:6: error:
'PWRMGTCR0_AV_IDLE_CNT_SHIFT' undeclared (first use in this function)
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c: In function
'set_altivec_idle_wait_entry_bit':
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c:326:19: error:
'PWRMGTCR0_AV_IDLE_CNT' undeclared (first use in this function)
/home/scott/fsl/git/linux/upstream/arch/powerpc/kernel/sysfs.c:329:36: error:
'PWRMGTCR0_AV_IDLE_CNT_SHIFT' undeclared (first use in this function)
make[2]: *** [arch/powerpc/kernel/sysfs.o] Error 1
make[1]: *** [arch/powerpc/kernel] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [sub-make] Error 2
I'll fix when applying with this:
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index 9af9e37..d4a43e6 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -86,7 +86,7 @@ __setup("smt-snooze-delay=", setup_smt_snooze_delay);
#endif /* CONFIG_PPC64 */
-#ifdef CONFIG_FSL_SOC
+#ifdef CONFIG_PPC_FSL_BOOK3E
#define MAX_BIT 63
static u64 pw20_wt;
@@ -723,7 +723,7 @@ static void register_cpu_online(unsigned int cpu)
device_create_file(s, &dev_attr_pir);
#endif /* CONFIG_PPC64 */
-#ifdef CONFIG_FSL_SOC
+#ifdef CONFIG_PPC_FSL_BOOK3E
if (PVR_VER(cur_cpu_spec->pvr_value) == PVR_VER_E6500) {
device_create_file(s, &dev_attr_pw20_state);
device_create_file(s, &dev_attr_pw20_wait_time);
@@ -804,7 +804,7 @@ static void unregister_cpu_online(unsigned int cpu)
device_remove_file(s, &dev_attr_pir);
#endif /* CONFIG_PPC64 */
-#ifdef CONFIG_FSL_SOC
+#ifdef CONFIG_PPC_FSL_BOOK3E
if (PVR_VER(cur_cpu_spec->pvr_value) == PVR_VER_E6500) {
device_remove_file(s, &dev_attr_pw20_state);
device_remove_file(s, &dev_attr_pw20_wait_time);
-Scott
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